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The "Aptos Blue" coast redwood (Sequoia sempervirens "Aptos Blue") is hardy in U.S. Department of Agriculture plant hardiness zones 8 through 10 or zones 7 through 9, depending on the source. This cultivar grows 70 to 100 feet tall in urban areas, and its canopy spreads 15 to 30 feet wide. Because of the evergreen tree's mature size and shallow, spreading root system, do not plant it closer than 100 feet from a building's foundation.

Habitat

"Aptos Blue" requires moist, well-drained, acidic soil with a pH range of 4.5 to 6.5. Adding a 3- to 4-inch-thick layer of mulch on top of the soil helps maintain a consistent level of moisture, reducing drought stress on the tree. The cultivar also needs exposure to full sun or partial shade. Its seaside tolerance is rated as good in a moderate zone by California Polytechnic State University's Urban Forest Ecosystems Institute. The tree grows 36 or more inches annually.

About the Author

With degrees in fine and commercial art and Spanish, Ruth de Jauregui is an old-school graphic artist, book designer and published author. De Jauregui authored 50 Fabulous Tomatoes for Your Garden, available as an ebook. She enthusiastically pursues creative and community interests, including gardening, home improvement and social issues.